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Finding the Fourth Proportional to 657,625.80, 918,576.60 and 657,625.80

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Solution

The fourth proportional to 657,625.80, 918,576.60 and 657,625.80 is: 918,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,625.80 : 918,576.60 = 657,625.80 : x
  2. Step 2: Convert to fraction form
    657,625.80/918,576.60 = 657,625.80/x
  3. Step 3: Cross multiply
    657,625.80x = 918,576.60 × 657,625.80
  4. Step 4: Simplify right side
    657,625.80x = 604,079,671,436.28
  5. Step 5: Solve for x
    x = 604,079,671,436.28/657,625.80
  6. Step 6: Final answer
    x = 918,576.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.